Apparatus for treating oils



May 4 .1926.

P. CASSIDY APPARATUS FOR TREATING OILS 2 Sheets-Sheet 1 p INVENTOR.

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ATTORNEYS Filed Nov. 21-. 1922 P. CASSIDY APPARATUS FOR TREATING OILSMay 4, 192's. 1,582,899

Filed Nov. 2.1, 1922 2 Sheets-Sheet 2 v 30 z/ z? 3/ .7 j; y i

=5 v 1] l Z 27 25 4 IN V EN TOR.

ATTORNEYS.

Patented May 4, 1926.

.Riverside, in the county of Fairlield and I State of Connecticut.

UNITED I STA TES CONNECTICUT, ASSIGNOR TO THE BABCOCK & WILCOZ ER SEY,A. CORPORATION OF NEW JERSEY.

PATENT OFFICE.

APPARATUS FOR TREATING OILS.

Application fiIed November 21, 1922. Serial No. 602,461.

Tofall whom it may concern:

Be it known that I, PERRY "GAssIDY, a

citizen of the Uni ted States, residing at have invented certain new anduseful Improvements in Apparatus for Treating Oils, of which thefollowing is a specification. I

My invention rel vegetable oils whereates to the treatment of in the oilis subjected to the action of a gaseous medium, and it is an object ofmy invention to provlde an apparatus in which th e oil may be treatedefficiently and effectively.

My invention will be best understood from the following description andthe annexed drawings of one f0 rm of apparatus which I have chosen forpurposes of illustration,

in which Figure 1 is a vertical section of the illustrative form of theapparatus; Fig. 2

is an enlarged view, heads and 1s taken on Frg. 3* 1s a sectional ployedin my illust a bottom plan view 0 in plan, of the tube line 2-2 ofFigure 1; view of a nozzle emrative device; Fig. 1 is f Fig. 3 and Fig.5

represents an arrangement of apparatus according to oneembodiment of theinvention for treating the oil with steam.

Referring to Fig. vided intermediate 1, a container 1 is proits endswith a set of tubes 3 extending through tube-sheets 4: and

the-latter being secured to the tank 1,

as shown. Preferably secured to the same tube-sheets is a sec ond set oftubes 2, the

purpose of which will appear hereinafter.

Associated with nozzle 5, preferably of the tube, as shown, each eachtube 3 of the set is a located adjacent one end nozzle preferably beingPIOVldGd-Wll'li a conlcal element 6 of Venturi shape to increase theinjector action.

The nozzles 5 may be secured to one or more common chambers 7. andthese, in turn, to

the conduit 8, whereby steam or any de-- sired gas may be admittedthrough the lat ter and into the nozzles. tube set 3 is provided aassist in the circulation of the oil, and this be advantageously.provided with to assist in the stirring and mixbaflie'may screens 11 ingof the oil with troduced at 8 or 9.

Surrounding the conical baffle 10 to the gaseous medium in- The baflie10 is preferably secured to the tank by means of the brace 12, as shown.

Near the top of the tank the gaseous medium leaving the containerat theoutlet 17 at the top. The baffle 13 also acts to prevent oil being blownout of the steam outlet 17 when the apparatus is in use. The containeris also conveniently provided with a level gauge 16 and manhole 18.

.Means are provided to heat the oil passing through the tube sets .3 and2, comprising an inlet 20 for the heating medium, preferablyhigh-pressure steam, and the exit 21.

In the arrangement shown in Fig. 5, a boiler, preferably of the ordinaryhigh-pressure type, is used to supply high pressure steam for heatingthe oil through pipe 20 and also to supply the medium, supplied throughthe nozzles 5, for treating the oil, this steam being preferably at alower pressure than the heating steam. 'In this arrangement, steam underboiler pressure from boiler 31.passes through conduits and 20, aroundthe tube sets 3 and 2, out at 21, and into the receiver 31, whence it isreturned by means of pump 37 to the boiler, the return connectionthereto 1 not being shown. In conduit 35 is inserted a reducing valve32, whereby steam under reduced pressure is admitted to the chamber 7 byvalve 10., f-If desired, steam from other sources, as, for example,exhaust steam from the pumps, may be admitted by means of valve 41 intothe chambers 7 The steam, or other gaseous medium, admitted through thenozzles is withdrawn from the container at the top through the outlet 17and pipe 22 and thence passes to condenser 23, which, conveniently, maybe of the barometric type, as shown. If desired, a feed-water heater maybe inserted in the conduit 22, as shown.

Oil is admitted to the system through conduit 25, passing through valve27, pump 26, and valve 30, through pipe 14; into the top of thecontainer. valves 28 and 29 remainin closed. Oil may be circulatedexteriorly o the container by means of pipe 15, valve 28, pump 26,,valve 30, and pipe/14, valves 27 and 29 being closed. When it is desiredto drain the container of the oil, valves 28 and 29 are open and valves27 and 30 closed. i

In use, oil is placed in the container 1, and, if desired, may be firstbrought to a suitable temperature by admitting steam to the exterior ofthe tube sets 2 and 3 and circulating the oil through the container andpipe 14 by means of pump 26. Vhen the desired temperature has beenreached in this manner, the gaseous medium, for example, hydrogen, or,in the embodiment illustrated, steam is introduced through either orboth of the pipes 8 and 9. The gaseous medium issues from the nozzles 5with increased velocity and causes the oil to be injected through thetubes 3. Here the oil and gaseous medium are thoroughly mingled and aresubjected to considerable scrubbing action by virtue of the extendedtube surface aitorded. The mixture leaves the tubes at considerablevelocity and partially owing to the fact that the mixture of oil and gasor steam is considerably lighter than the rest of the oil, ascends thespace enclosed by the baflie 10,

passing through the screens 11, where it is i more intimately mixed. Atthe same time, the oil on the outside of the baflle 1O descends throughtubes 2, thus maintaining the cir eulation.

In the arrangement described, it will be noted that the oil is heated inthe same container in which it is treated with steam or gas. Thissimplifies the apparatus. By using, high pressure steam for heating theoil, care is not required to prevent heating the oil above thetemperature which would injure the oil, since the steam pressure (andconsequently its temperature) may be setbelow the danger point.Moreover, heat may be supplied to the oil while under treatment. Byusing high. pressure steam for heating the oil, high efficiency may beobtained, because the temperature of such steam remains constant whileit is giving up its heat to the oil, and, therefore, the heat transferrate is constant. This would not be true if superheated steam were used.

By using the oil-treating steam or gas to produce circulation of the oilin the container, all circulating pumps or the like'may be dispensedwith. In the arrangement described, the energy in this oil-treatingsteam or gas is utilized to produce a positive circulation of the oil.

The circular baflle 10 separates the rising column of oil mixed withsteamer gas from the descending column of oil alone, so that thecirculation of the oil :is thereby assured and the screens'inthis-rising column add materially to the scrubbing action of the steamor gas on the oil.

By providing the injector nozzles at the lower ends of relatively longtubes, in the manner described, the oil attains a high velocity throughthese tubes and a correspondingly rapid circulation of the oil in thecontainer and this, together with the scouring action obtained in thesetubes and by meansof the screens, greatly reduces the tifmelrequired forthe treatment of a batch o 01 i i It'will be understood that thearrangement described is merely illustrative and that the embodiment ofthe invention may be Varied within wide limit-s.

I claim: 1. An apparatus for treating oils comprising a containeryaplurality of substantially 'upright tubes within the container andhaving their open ends spaced from the top and bottom thereof, nozzlesplaced near the ends of some of said tubes so as to in duce a flow ofthe oil through the tubes when steam or a gas is injected through thenozzles, means forsupplying steam or a gas to said nozzles, an uprightconduit superposed around the ends of the tubes remote from the nozzles,said conduit being spaced from the walls of the. container.

2. An apparatus for treating oils comprising a container, a plurality ofsubstantially upright tubes within the container and spaced from the topand bottom thereof, nozzles placed near the ends of said tubes so as toinduce a flow of the oil through the tubes when steam or a gas isinjected through the nozzles. means for supplying steam or a gas to saidnozzles, an upright conduit superposed around the ends of the tubesremote from the nozzles, said conduit being spaced from the walls of thecontainer and having a foraminous diaphragm therein.

3. A apparatus for treating oils comprising a container for the oil,heads spaced apart and dividing the container into compartments, tubesextending through the space between the heads and connecting thecompartments at either end thereof, nozzles placed near the ends of someof said tubes so as to inducea flow of oil through the tubes when steamor a gas is injected through the nozzles, and means. for supply ingsteam or a gas to said nozzles.

4. An apparatus for treating oils comprising a container for the oil,heads spaced apart and dividing the container into compartments, tubesextending through the space between the heads and connecting thecompartments at either end thereof, nozzles placed near the ends of someof said tubes, means for injecting steam or a gas through the nozzles soas to induce a flow of oil through the tubes, andm'eans to pass aheatingfluid through the compartment between apart and dividing the the centerof the confiow of oil through some of said tubes near tainer so as toinduce a said group is injected therethrough, and means for supplyingsteam or a gas to the nozzles.

6. An apparatus for treating oils comprising a container for the oil,heads spaced apart and dividing thecontainer into compartments, tubesextending through the space between the heads and connecting thecompartments at either end thereof, means for injecting steam or a gasinto one en each of a group of some of said tubes near the center of thecontainer, and a conduit connecting with the head opposite the injecting means and surrounding the ends of the tubes in said group, saidconduitbeing ,spaced from the walls of the container.

7. An apparatus for treating oils comprising a container for the oil,heads spaced container into comtubes extending through the partments,

the heads and connecting the space between compartments at either endthereof, means for injecting steam or a gas into one end of each of agroup of some of said tubes near the center of the container, and aconduit connecting with the head opposite the injecting means andsurrounding the ends of the the tubes in said group, said conduit beingspaced from the walls ofthe container and increasing in area from thehead to the end of the conduit. I

8. .An apparatus for treating oils comprising a container for the oil,heads spaced apart and dividing the container into compartments, tubesextending. through space between the heads and connecting thecompartments at either end thereof, means for injecting steam or a gasinto one end of each of a group of some of said tubes near the center ofthe container, a conduit connecting with the head opposite the injectingmeans and surrounding the ends of the tubes in said group, said conduitbeing spaced of tubes when steam or a gas the center of the container, dof' the' of some of said from the walls of'the container, and aforaminous diaphragm in said conduit.

9. An apparatus for treating oils com prising a container for the oil,heads spaced apart and dividing the container into compartments, tubesextending through the space between the heads and connecting thecompartments at either end thereof, means for injecting steam or a gasinto one end of each of a group of some of said tubes near necting withthe head opposite the injectlng meansand surrounding, the ends of thetubes in said group, said conduit being spaced from the Walls of thecontainer, and means for passing a heating fluid through the compartmentbetween the heads.

10. An apparatus for treating oils comprising a container for the oil,heads spaced apart and dividing the container into compartments, tubesextending through the space between the heads and connecting thecompartments at either end thereof, nozzles placed near the ends of someof said tubes so as to induce a flow of oil through the tubes when steamor a gas is injected through the nozzles, and means for supplying lowpressure saturated steam to said nozzles, and means for passing highpressure-saturated steam through the compartment between the heads.

11. An apparatus for treating oils com; prising a container for the oil,heads spaced apart and dividing the container into compartments, tubesextending thrc gh' the space between compartments at either end thereof,a nozzle placed near the end of each of a group tubes near the center ofthe container, so as to induce a flow of oil through said group of tubeswhen steam or a gas is injected therethrough,other and, surroundingtubes serving or the return of the oil.

a conduit con- 7 the heads and connecting the PERRY oAssmY.

